style.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --background: #060608;
  --color: #FAFAFA;
}

article {
  width: 80%;
  margin-top: 8em;
  margin-bottom: 8em;
  margin-left: auto;
  margin-right: auto;
  color: var(--color);
}

a:link {
  color: var(--color);
  text-decoration: none;
}

a:visited {
  color: var(--color);
  text-decoration: none;
}

a:hover {
  color: grey;
  text-decoration: none;
}

a:active {
  color: grey;
  text-decoration: none;
}

html, body {
  width: 100%;
  height: 100%;
  font-family: Arial;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--background);
}

.container {
  color: var(--color);
  font-size: 1.5rem;
  display: flex;
  flex-direction: column;
}

.right {
  text-align: right;
  width: 100%;
}

.stack {
  display: grid;
  grid-template-columns: 1fr;
}

.stack span {
  font-weight: bold;
  grid-row-start: 1;
  grid-column-start: 1;
  font-size: 4rem;
  --stack-height: calc(100% / var(--stacks) - 1px);
  --inverse-index: calc(calc(var(--stacks) - 1) - var(--index));
  --clip-top: calc(var(--stack-height) * var(--index));
  --clip-bottom: calc(var(--stack-height) * var(--inverse-index));
  clip-path: inset(var(--clip-top) 0 var(--clip-bottom) 0);
  animation: stack 340ms cubic-bezier(.46,.29,0,1.24) 1 backwards calc(var(--index) * 120ms), glitch 2s ease infinite 2s alternate-reverse;
}

.stack span:nth-child(odd) { --glitch-translate: 8px; }
.stack span:nth-child(even) { --glitch-translate: -8px; }

@keyframes stack {
  0% {
    opacity: 0;
    transform: translateX(-50%);
    text-shadow: -2px 3px 0 red, 2px -3px 0 blue;
  };
  60% {
    opacity: 0.5;
    transform: translateX(50%);
  }
  80% {
    transform: none;
    opacity: 1;
    text-shadow: 2px -3px 0 red, -2px 3px 0 blue;
  }
  100% {
    text-shadow: none;
  }
}

@keyframes glitch {
  0% {
    text-shadow: -2px 3px 0 red, 2px -3px 0 blue;
    transform: translate(var(--glitch-translate));
  }
  2% {
    text-shadow: 2px -3px 0 red, -2px 3px 0 blue;
  }
  4%, 100% {  text-shadow: none; transform: none; }
}